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COBEM 2021
26th International Congress of Mechanical Engineering
Methodology for Obtaining a Digital Twin for a FPSO Mooring System
Submission Author:
Guilherme Rangel , SP , Brazil
Co-Authors:
Guilherme Rangel, Giovanni Aiosa do Amaral, Kennedy Leandro de Souza Neves, Guilherme Martins, Alfredo Gay Neto, Luís Antônio Guimarães Bitencourt Júnior, Guilherme Franzini, Raul Dotta, Edgard Malta
Presenter: Guilherme Rangel
doi://10.26678/ABCM.COBEM2021.COB2021-0749
Abstract
A digital twin (DT) is an information model that represents a physical entity. Its main feature is to combine real and virtual data, in order to evaluate and monitor many systems and processes in different fields of knowledge. This paper proposes a particular application of DT in the Oil \& Gas (O\&G) industry. In this scenario, DT can be useful for life-cycle management and structural health monitoring of complex offshore structures, as a Floating Production Storage and Offloading (FPSO). This work focuses on the analysis of an FPSO mooring system. Mooring systems play an important role in the FPSO global motion, being responsible for the station-keeping of the vessel. In this context, any failure could compromise the their effectiveness and affect the expected production of the FPSO. Moreover, depending on the failure, environmental risks can be high. Thus, an accurate prediction for the behavior of mooring lines is essential. However, monitoring a whole system including the entire lines in real-time is unpractical in terms of data storage, installation, and data processing. Therefore, the possibility of usage of virtual sensors can be seen as a welcome strategy for the context. For that, one needs to expedite tools to combine real and digital data that can help overcome the obstacles. In the present paper, a methodology based on a hierarchical modeling for the lines will be presented for establishing DT for mooring systems. Distinct mooring models, including intact and damaged lines, will be employed, covering analytical and finite elements.
Keywords
Digital Twin, offshore structures, mooring systems, FPSOs, Methodology
